I think I have found the problem why it didn’t work. My custom control inherits from ComboBox which is not a DependencyObject. That’s why the Dependency Properties did not work properly. Had to find a workaround for this, because not inheriting from ComboBox would mean even more work.
Sorry for accusing your grid to be buggy, I will never do it again 🙂
Imported from legacy forums. Posted by Ralf (had 272 views)